smack: move helper function to smack-util.c

The function was in basic/fileio.c, but it's more appropriate to
keep it out of src/basic.

Fixes compilation with -Dsmack-run-label= set.

2 files changed, 15 insertions, 0 deletions

diff --git a/src/shared/smack-util.c b/src/shared/smack-util.c
index 2ae11e7f9a..01958f0b0d 100644
--- a/src/shared/smack-util.c
+++ b/src/shared/smack-util.c
@@ -284,3 +284,16 @@ int mac_smack_copy(const char *dest, const char *src) {
         return 0;
 }
 #endif
+
+int rename_and_apply_smack_floor_label(const char *from, const char *to) {
+        int r = 0;
+        if (rename(from, to) < 0)
+                return -errno;
+
+#if HAVE_SMACK_RUN_LABEL
+        r = mac_smack_apply(to, SMACK_ATTR_ACCESS, SMACK_FLOOR_LABEL);
+        if (r < 0)
+                return r;
+#endif
+        return r;
+}
diff --git a/src/shared/smack-util.h b/src/shared/smack-util.h
index 36fdc72083..df91c89e01 100644
--- a/src/shared/smack-util.h
+++ b/src/shared/smack-util.h
@@ -44,3 +44,5 @@ int mac_smack_apply(const char *path, SmackAttr attr, const char *label);
 int mac_smack_apply_fd(int fd, SmackAttr attr, const char *label);
 int mac_smack_apply_pid(pid_t pid, const char *label);
 int mac_smack_copy(const char *dest, const char *src);
+
+int rename_and_apply_smack_floor_label(const char *temp_path, const char *dest_path);